Re: Query Problem, Confused by Left Join.
John Wards wrote: I have this query: SELECT * FROM news_category LEFT JOIN news_x_cat ON news_category.id = news_x_cat.cat_id WHERE ( news_x_cat.news_id = 9 OR news_x_cat.news_id IS NULL ) Which gives me this output: id title perm show news_id cat_id 1 About Us 1 1NULL NULL 2 Learn About Your Hair 1 1 NULL NULL 3 Press Room 0 0 9 3 4 Research News 0 0 9 4 Its Padding out with NULLs fine for the first 2 but missing out a few other records from news_category. What I want the query to do is display all the news_categorys if they are mentioned in news_x_cat or not and if they don't have any data with in news_x_cat I need this bit padded out with NULLs. Any ideas where I am going wrong? yes, you use a WHERE if you want all, dont use this WHERE! with your WEHRE you get only this news_category which have a news with the id 9 or no news at all -- Sebastian Mendel www.sebastianmendel.de www.tekkno4u.de www.nofetish.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Query Problem, Confused by Left Join.
I have this query: SELECT * FROM news_category LEFT JOIN news_x_cat ON news_category.id = news_x_cat.cat_id WHERE ( news_x_cat.news_id = 9 OR news_x_cat.news_id IS NULL ) Which gives me this output: id title perm show news_id cat_id 1 About Us 1 1NULL NULL 2 Learn About Your Hair 1 1 NULL NULL 3 Press Room 0 0 9 3 4 Research News 0 0 9 4 Its Padding out with NULLs fine for the first 2 but missing out a few other records from news_category. What I want the query to do is display all the news_categorys if they are mentioned in news_x_cat or not and if they don't have any data with in news_x_cat I need this bit padded out with NULLs. Any ideas where I am going wrong? Cheers John Wards -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: Query Problem, Confused by Left Join.
You have not shown us anything that would indicate that your output is not correct. If you think something is missing you have to show us what is missing, and why you think it should not be. John Wards wrote: I have this query: SELECT * FROM news_category LEFT JOIN news_x_cat ON news_category.id = news_x_cat.cat_id WHERE ( news_x_cat.news_id = 9 OR news_x_cat.news_id IS NULL ) Which gives me this output: id title perm show news_id cat_id 1 About Us 1 1NULL NULL 2 Learn About Your Hair 1 1 NULL NULL 3 Press Room 0 0 9 3 4 Research News 0 0 9 4 Its Padding out with NULLs fine for the first 2 but missing out a few other records from news_category. What I want the query to do is display all the news_categorys if they are mentioned in news_x_cat or not and if they don't have any data with in news_x_cat I need this bit padded out with NULLs. Any ideas where I am going wrong? Cheers John Wards -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
